Matrix Sorcica
Hero
Seems like the red dragon playing a part in "Dragon Mountain" isn't just any old dragon: Dungeons & Dragons Roleplaying Game Official Home Page - Product (Wrath of Ashardalon)
It's the same engine as the Ravenloft board game coming out, with some ability to mix and match between them. "Wrath of Ashardalon" is also the third name I've heard for it